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-rw-r--r--tools/perf/bench/mem-memcpy.c11
-rw-r--r--tools/perf/bench/mem-memset.c11
2 files changed, 18 insertions, 4 deletions
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index db82021..6ad2b1c 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -24,6 +24,7 @@
static const char *length_str = "1MB";
static const char *routine = "default";
+static int iterations = 1;
static bool use_clock;
static int clock_fd;
static bool only_prefault;
@@ -35,6 +36,8 @@ static const struct option options[] = {
"available unit: B, MB, GB (upper and lower)"),
OPT_STRING('r', "routine", &routine, "default",
"Specify routine to copy"),
+ OPT_INTEGER('i', "iterations", &iterations,
+ "repeat memcpy() invocation this number of times"),
OPT_BOOLEAN('c', "clock", &use_clock,
"Use CPU clock for measuring"),
OPT_BOOLEAN('o', "only-prefault", &only_prefault,
@@ -121,6 +124,7 @@ static u64 do_memcpy_clock(memcpy_t fn, size_t len, bool prefault)
{
u64 clock_start = 0ULL, clock_end = 0ULL;
void *src = NULL, *dst = NULL;
+ int i;
alloc_mem(&src, &dst, len);
@@ -128,7 +132,8 @@ static u64 do_memcpy_clock(memcpy_t fn, size_t len, bool prefault)
fn(dst, src, len);
clock_start = get_clock();
- fn(dst, src, len);
+ for (i = 0; i < iterations; ++i)
+ fn(dst, src, len);
clock_end = get_clock();
free(src);
@@ -140,6 +145,7 @@ static double do_memcpy_gettimeofday(memcpy_t fn, size_t len, bool prefault)
{
struct timeval tv_start, tv_end, tv_diff;
void *src = NULL, *dst = NULL;
+ int i;
alloc_mem(&src, &dst, len);
@@ -147,7 +153,8 @@ static double do_memcpy_gettimeofday(memcpy_t fn, size_t len, bool prefault)
fn(dst, src, len);
BUG_ON(gettimeofday(&tv_start, NULL));
- fn(dst, src, len);
+ for (i = 0; i < iterations; ++i)
+ fn(dst, src, len);
BUG_ON(gettimeofday(&tv_end, NULL));
timersub(&tv_end, &tv_start, &tv_diff);
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index 9c0c6f0..59d4933 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -24,6 +24,7 @@
static const char *length_str = "1MB";
static const char *routine = "default";
+static int iterations = 1;
static bool use_clock;
static int clock_fd;
static bool only_prefault;
@@ -35,6 +36,8 @@ static const struct option options[] = {
"available unit: B, MB, GB (upper and lower)"),
OPT_STRING('r', "routine", &routine, "default",
"Specify routine to copy"),
+ OPT_INTEGER('i', "iterations", &iterations,
+ "repeat memset() invocation this number of times"),
OPT_BOOLEAN('c', "clock", &use_clock,
"Use CPU clock for measuring"),
OPT_BOOLEAN('o', "only-prefault", &only_prefault,
@@ -117,6 +120,7 @@ static u64 do_memset_clock(memset_t fn, size_t len, bool prefault)
{
u64 clock_start = 0ULL, clock_end = 0ULL;
void *dst = NULL;
+ int i;
alloc_mem(&dst, len);
@@ -124,7 +128,8 @@ static u64 do_memset_clock(memset_t fn, size_t len, bool prefault)
fn(dst, -1, len);
clock_start = get_clock();
- fn(dst, 0, len);
+ for (i = 0; i < iterations; ++i)
+ fn(dst, i, len);
clock_end = get_clock();
free(dst);
@@ -135,6 +140,7 @@ static double do_memset_gettimeofday(memset_t fn, size_t len, bool prefault)
{
struct timeval tv_start, tv_end, tv_diff;
void *dst = NULL;
+ int i;
alloc_mem(&dst, len);
@@ -142,7 +148,8 @@ static double do_memset_gettimeofday(memset_t fn, size_t len, bool prefault)
fn(dst, -1, len);
BUG_ON(gettimeofday(&tv_start, NULL));
- fn(dst, 0, len);
+ for (i = 0; i < iterations; ++i)
+ fn(dst, i, len);
BUG_ON(gettimeofday(&tv_end, NULL));
timersub(&tv_end, &tv_start, &tv_diff);